Improvement in rotary pumps



UNITED STATES PATENT OFFICE.

CLARK P. HOLME S, OF HAVANA, NEW YORK.

IMPROVEMENT IN ROTARY PUMPS.

Specification forming part of Letters Patent No. 142,696, dated September 9, 1873; application filed August 1, 1873.

To all whom it may concern:

Be it known that I, CLARK P. HoLMEs, of Havana, in the county of Schuyler and in the State of New York, have invented certain new and useful Improvements in Rotary Pump 5 and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon making a part of this specification.

The nature of my invention consists in the construction and arrangement of a rotary pump, as will be hereinafter more fully setforth.

In order to enable others skilled. in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, in which Figure 1 is a side elevation of my pump with the head removed to show the interior of the same. Fig. 2 is a longitudinal section of the same through the line 00 m, Fig. 1.

A represents a cylindrical casing, in which is situated a revolving wheel, B, of smaller diameter than the inner diameter of the easing. The wheel B is provided with slots a a; and, in the heads of the casin g A, are circular recesses b b, communicating with each other through the slots to a, and allowing water to pass in to form a water-packing for the wheel. On opposite sides of the wheel B are two pistons, U 0, which project from the surface of the wheel, and extend to the inner circumference of the cylinder or casing. E represents the water inlet, and H the outlet, situated opposite each other on one side of the center, as shown in Fig. 1. Between the inlet and outlet is situated a valve, D, which is inclosed in a cylindrical casing, G, formed on the side of the main casing'A, and opening into the same. This valve D is cylindrical in shape, and deeply corrugated longitudinally, so as to form a series of wings, d d, of such depth as to extend into the casing A against the surface of the wheel B.

The wheel B- being in motion, the water is drawn up, through the inlet E, into the casing A by suction caused by the pistons C O; and, as the water cannot pass by the valve D, it must pass around the wheel B, and out at the outlet H, each piston forcing the water ahead of it out, and drawing Water up with it through the inlet. As the piston strikes the valve D it turns the same the distance of one corrugation. Friction is produced upon one end of the valve D to counteract the force of the water on the valve, and prevent the valve from beingturned back by the water, by the following means: The ends of the valve D are provided with journals 6 0, upon which it turns in the valve-casing G. Over one of these journals is placed a metal disk, f, in a recess in the casing and this disk is forced against the end of the valve by means of set-screws h h, so as to create the required amount of friction.

Having thus fully described my invention, what 1 claim as new, and desire to secure by Letters Patent, is-

1. In combination with the valve D, the disk f and set-screws h h, substantially as and for the purposes herein set forth.

2. The combination of the casingA with inlet E and outlet H, wheel B with pistons O O, corrugated valve D, valve-chamber Gr, disk f, and set-screws h It, all substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 31st day of July, 1873.

CLARK I. HOLMES.

Witnesses J. M. Mason, 0. L. EVERT.

F. M. HOLMES.

Clamps.

No. 142,697, Patented September9,1873. 

